.header{
    height: 64px;
    background-color: #fff;
    border: 1px solid rgb(216,216,216);

}

.left{
    font-size: 20px;
    line-height:64px;
    padding-left: 50px;
    color: rgba(0, 0, 0, 0.65);
}

.avater{
    float: right;
    margin-top: 5px;
    margin-right:20px;
}